US3601968A - Electrically heated, unilaterally supported drawroll having cooling means - Google Patents

Electrically heated, unilaterally supported drawroll having cooling means Download PDF

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Publication number
US3601968A
US3601968A US882875A US3601968DA US3601968A US 3601968 A US3601968 A US 3601968A US 882875 A US882875 A US 882875A US 3601968D A US3601968D A US 3601968DA US 3601968 A US3601968 A US 3601968A
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US
United States
Prior art keywords
drawroll
combination
machine frame
supporting tube
heating device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US882875A
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English (en)
Inventor
Armin Wirz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maschinenfabrik Rieter AG
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Maschinenfabrik Rieter AG
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Filing date
Publication date
Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/14—Tools, e.g. nozzles, rollers, calenders
    • H05B6/145—Heated rollers
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
    • D02J13/005—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass by contact with at least one rotating roll

Definitions

  • the heating means is rigidly secured to the machine frame by a hollow supporting tube surrounding the shaft; a fan means is disposed within the tube to draw cooling air along the shaft and expel it through radial openings adjacent the heating means.
  • a hood may be provided externally of the supporting tube to enclose the space extending axially from the machine frame to the heating means.
  • the invention concerns an electrically heated, unilaterally supported drawroll provided with a cooling zone for drawtwisting, draw-winding and spin-draw-winding machines.
  • a drawroll cylinder is used, both face sides of which are open and provided with wing-shaped spokes. Furthermore a ring-shaped duct is provided for guiding the air around the drive shaft.
  • the cooling air enters via holes provided in the circumference of the supporting plate of the drawroll, flows through the ring-shaped duct and escapes via the drawroll housing face zone. Cooling of the shaft is attempted by circulation of cooling air which carries oh the heat radiated towards the inside. In this arrangement an undesirable airflow through the roll inside occurs, carrying off part of the heat generated by the heating device. In order to make up this heat loss, the heating device must consume more energy.
  • a further disadvantage of this arrangement is the high manufacturing cost.
  • FIG. 1 a longitudinal section of a drawroll according to the invention
  • FIG. 2 an alternative embodiment of the drawroll shown in FIG. 1,
  • FIG. 3 a top view of a fan blade wheel.
  • FIG. 1 a first embodiment of the invention is shown, in which a drive motor (not shown) is flanged to a bearing housing 1.
  • a drive motor (not shown) is flanged to a bearing housing 1.
  • a fan blade wheel 4 acting as a fan rotor means and a drawroll 5 are rigidly mounted for rotation therewith.
  • a flange 8 of a supporting tube 6 supporting a heating device 7 is threadedly secured to the bearing housing so that the heating device is rigidly secured to the machine frame within and substantially coaxial with the drawroll 5.
  • Flange 8 is provided with projections 9 serving to space the flange from the housing, keeping openings 10 free between housing 1 and flange 8.
  • perforations II are provided in the supporting tube 6 in the zone facing the fan blade wheel 4 and preferably in the radial plane of the fan blade wheel. It will be noted that in this manner, a cooling zone is formed between the drawroll 5 and the bearing housing I.
  • FIG. 2 a somewhat differing embodiment is shown, a drawroll 12 being mounted directly onto a motor shaft 13.
  • a fan blade wheel 14 also is mounted onto this motor shafl 13.
  • a heating device 18 is mounted onto a supporting tube 15, a flange 16 of which tube is screwed to a motor housing 17 containing an antifriction bearing 17'.
  • Air suction openings 19 are formed by means of projections 20 between the flange 16 and the motor housing 17. in order to let the cooling air escape, radial openings 21 are provided along the circumference of the supporting tube in the zone facing the fan blade wheel 14.
  • the cooling air itself is transported by a motor fan (not shown) along ribs 22 and flange 16 via the supporting tube 15 into a hood 23, the surface of which also is provided, like the supporting tube 15, with radial openings 24 in order to let the cooling air escape to the outside.
  • the fan blade wheel 4 shown in FIG. 3, which can be used in both embodiments described, is provided with recesses 25 extending radially from the inside towards the circumference. Said wheel should preferably be made from a heat conductive material. In either event, the radial openings 11 or 21 are preferably disposed adjacent the heating device.
  • the function of the devices according to the invention is described shortly in the following.
  • the shaft (2, 13) is driven by a motor (not shown).
  • the drawroll (5, l2) and the fan blade wheel (4, l4) rotate at the same speed as the drawroll shaft. Air from the outside is sucked in via the openings (9, 19) by the fan and escapes, after flowing along the shaft (2, 13), via the openings (11, 2i, 24) to the outside space.
  • cooling air forced along ribs 22 is guided into the suitably shaped hood 23 and through the openings 19.
  • an electrically heated, unilaterally supported drawroll for drawtwisting, draw-winding, or spin-drawwinding machines or the like a shaft rigidly secured to said drawroll and rotatably supported within a bearing housing secured to the machine frame and axially spaced from said drawroll, a heating device within the interior of said drawroll and concentric with the axis of rotation of said drawroll, said heating device being rigidly secured to the machine frame adjaccnt said bearing housing, a cooling zone defined between said heating device and said bearing housing, and a fan rotor means within said cooling zone adapted to draw cooling air through said cooling zone and expel the cooling air radially.
  • said rotor means comprises a heat-conductive material and is provided with a plurality of radially extending recesses in the surface thereof.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
US882875A 1968-12-13 1969-12-08 Electrically heated, unilaterally supported drawroll having cooling means Expired - Lifetime US3601968A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1858568 1968-12-13

Publications (1)

Publication Number Publication Date
US3601968A true US3601968A (en) 1971-08-31

Family

ID=4433972

Family Applications (1)

Application Number Title Priority Date Filing Date
US882875A Expired - Lifetime US3601968A (en) 1968-12-13 1969-12-08 Electrically heated, unilaterally supported drawroll having cooling means

Country Status (4)

Country Link
US (1) US3601968A (de)
DE (1) DE1962430A1 (de)
FR (1) FR2026051A1 (de)
GB (1) GB1244079A (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4005302A (en) * 1973-11-02 1977-01-25 Rieter Machine Works, Ltd. Inductively heated drawroll
US4497626A (en) * 1981-06-15 1985-02-05 Rieter Machine Works Heatable godet and a method of heating a godet
DE3341862A1 (de) * 1983-11-19 1985-05-30 Zinser Textilmaschinen Gmbh, 7333 Ebersbach Galette
US4822972A (en) * 1986-03-03 1989-04-18 Teijin Seiki Co., Ltd. Bearing cooling apparatus of heating roller
US5763859A (en) * 1993-06-04 1998-06-09 Maschinenfabrik Rieter Ag Induction heating draw roller with vibration damping
US6111235A (en) * 1997-11-28 2000-08-29 Barmag Ag Apparatus and method for cooling the bearing of a godet for advancing and guiding yarn

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2314627C2 (de) * 1972-05-24 1982-03-11 Adidas Sportschuhfabriken Adi Dassler Kg, 8522 Herzogenaurach Greifelement für Sportschuhe, insbesondere Rennschuhe
DE3701077A1 (de) * 1986-01-20 1987-08-20 Barmag Barmer Maschf Galetteneinheit mit direktem galettenantrieb
TW512053B (en) * 2000-01-24 2002-12-01 Japana Co Ltd A cleat for a golf shoe

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2336019A (en) * 1941-05-02 1943-12-07 Ind Rayon Corp Method of and apparatus for controlling the shrinkage of thread or the like
US2777931A (en) * 1954-02-05 1957-01-15 American Cyanamid Co Thread-advancing drying unit
US2834860A (en) * 1955-03-18 1958-05-13 Dixie Mercerizing Company Apparatus for continuous drying of yarn, etc.
US2921358A (en) * 1956-01-26 1960-01-19 Deering Milliken Res Corp Apparatus for producing elasticized thermoplastic yarns
US3159964A (en) * 1960-01-12 1964-12-08 Hoechst Ag Process for working up stretched filaments of aromatic polyesters of high molecular weight
US3187150A (en) * 1961-09-26 1965-06-01 Tmm Research Ltd Heating arrangements
US3200230A (en) * 1961-04-07 1965-08-10 American Enka Corp Apparatus for the heating of travelling thread or tape-shaped products on a transport roller
US3286081A (en) * 1963-03-08 1966-11-15 Tmm Research Ltd Electrical heating arrangements
US3417447A (en) * 1965-10-21 1968-12-24 Bancroft & Sons Co J Method and apparatus for treating crimped yarn
US3461657A (en) * 1967-10-27 1969-08-19 Scragg & Sons Textile apparatus
US3463893A (en) * 1967-04-24 1969-08-26 Teijin Ltd Temperature control apparatus for rotary heating roller

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2336019A (en) * 1941-05-02 1943-12-07 Ind Rayon Corp Method of and apparatus for controlling the shrinkage of thread or the like
US2777931A (en) * 1954-02-05 1957-01-15 American Cyanamid Co Thread-advancing drying unit
US2834860A (en) * 1955-03-18 1958-05-13 Dixie Mercerizing Company Apparatus for continuous drying of yarn, etc.
US2921358A (en) * 1956-01-26 1960-01-19 Deering Milliken Res Corp Apparatus for producing elasticized thermoplastic yarns
US3159964A (en) * 1960-01-12 1964-12-08 Hoechst Ag Process for working up stretched filaments of aromatic polyesters of high molecular weight
US3200230A (en) * 1961-04-07 1965-08-10 American Enka Corp Apparatus for the heating of travelling thread or tape-shaped products on a transport roller
US3187150A (en) * 1961-09-26 1965-06-01 Tmm Research Ltd Heating arrangements
US3286081A (en) * 1963-03-08 1966-11-15 Tmm Research Ltd Electrical heating arrangements
US3417447A (en) * 1965-10-21 1968-12-24 Bancroft & Sons Co J Method and apparatus for treating crimped yarn
US3463893A (en) * 1967-04-24 1969-08-26 Teijin Ltd Temperature control apparatus for rotary heating roller
US3461657A (en) * 1967-10-27 1969-08-19 Scragg & Sons Textile apparatus

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4005302A (en) * 1973-11-02 1977-01-25 Rieter Machine Works, Ltd. Inductively heated drawroll
US4497626A (en) * 1981-06-15 1985-02-05 Rieter Machine Works Heatable godet and a method of heating a godet
DE3341862A1 (de) * 1983-11-19 1985-05-30 Zinser Textilmaschinen Gmbh, 7333 Ebersbach Galette
US4822972A (en) * 1986-03-03 1989-04-18 Teijin Seiki Co., Ltd. Bearing cooling apparatus of heating roller
US5763859A (en) * 1993-06-04 1998-06-09 Maschinenfabrik Rieter Ag Induction heating draw roller with vibration damping
US6111235A (en) * 1997-11-28 2000-08-29 Barmag Ag Apparatus and method for cooling the bearing of a godet for advancing and guiding yarn

Also Published As

Publication number Publication date
FR2026051A1 (de) 1970-09-11
DE1962430A1 (de) 1970-07-09
GB1244079A (en) 1971-08-25

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